Locus export is designed not for Wahoo devices exclusively but for all devices and navi.-apps generally. Obviously, we won't rewrite GPX export for just one of them - that's why there are add-ons which are able to read Locus export correctly. As I wrote last time, Locus - Wahoo Rflkt addon is developed by a third party, try to contact them - tomi+rflkt@nomi.cz- and find out if your device isn't compatible with their software.